Improvement in staple-inserting machines



G. w. McGILL. Staple-Inserting Machines.

No. 220,932. Patented Oct. 28,1879.

UNITED. STATES PATENT OFFICE.

GEORGE W. MOGILL, OF NEW YORK, N. Y.

IMPROVEMENT IN STAPLE-INSERTING MACHINES.

Specification forming part of Letters Patent No. 220,932, dated October28, 1879; application filed J 11110 7, 1879.

To all whom iii-may concern:

Be it known that I, GEORGE W. MGGILL, of the city and county of NewYork, in the State of New York, have invented certain new and usefulImprovements in the Construction of the Staple-Insertin g Machinepatented to me by United States Letters Patent No. 212,316, datedFebruary 18, 1879, of which the following is a full description.

The object of this invention is to efi'ect the insertion and clinchingof metallic staples in sheets of paper, pamphlets, straw board, leather,woolens, &c., by one continuous and instantaneous operation or movementof the device.

Thisimproved machine has two arms, hinged together in the rear of thestaple-inserting mechanism, which is embraced in two jaws that may bepressed together, and separated by vibrating said arms upon the hinge orpivot which connects them, and in a supplemental jaw intermediatebetween said principal jaws,

as hereinafter more fully described.

The lower jaw forms an anvil, on which the staples are clinched, whichanvil is constructed in the same manner as that shown and described inmy said Patent No. 212,316 of February 18, 187 9. I f

The upper jaw carries a feathered plunger for driving the staples,embraced by a grooved supplemental jaw or case, in the grooves of whichthe feathers of the plunger move, as hereinafter more particularlydescribed.

In the accompanying drawings, Figure 1 represents a side view of mymachine. Fig. 2 is a similar view of the same, having a part of itsfront portion partially in section.

A is the upper jaw;- B, the lower, and A and 13 the handles. O is asupplemental jaw,

the free end of which is provided with the star ple-holding case 0 and Dis a plunger, adapted to move vertically in the case 0. E is a springadapted to hold the jawsAand G apart when pressure is removed therefrom.F represents the anvil front of the jaw B, having a longitudinal channelor depression, f, Fig. 6, and transverse groove 6, in which is insertedthe clinching-blade e.

Fig. 3 is an end or front view of the machine or implement, showingseveral sheets of paper, 9, between the jaws of the same, and in the actof being stapled or bound. Fig. 4 is a perspective view of the plungerD. Fig. 5 is a perspective view of the supplemental jaw 0, separate.Fig. 6 is a. similar view of the jaw B. Fig. 7 is a similarview of thejawA. Fig. 8 is a bottom view of the supplemental jaw U, with theplunger D inserted in the case 0, and a face view of the plunger,separate.

The supplemental jaw G, case 0, and plunger D, in connection with theupper jaw, A, form the staple'inserting mechanism; and the jaw B, withits anvil F, channel f, transverse groove 0, and clinching-blade e, thestapleclinching mechanism.

The front or free end of the supplemental jaw O is provided with theopen case 0, in which the plunger D moves vertically, the feathers cl don the sides of the same occupyin g corresponding vertical stapleguiding grooves 61 (1, formed in the inner opposite sides of the case 0.

The plunger D is provided with'the shoul ders 3 3, neck W, and head (1Its neck d is inserted in the vertical slot a, formed in the front endof the jaw A, by means of which jaw it is raised and lowered in its seatin the case 0, the object of this arrangement being to allow theplunger-neck to slide longitudinally in the slot a, and its body portionto move ventically in its seat in the case 0, while the device is beingoperated, the longitudinal sliding movement of its neck being necessaryto secure the vertical movement of its body, the latter movement beingnecessary to properly drive the staples from the staple guiding grooves11 d in the case 0 through the articles being bound.

After being so inserted in the jaw A and case 0', the ring end 0" of thelatter is inserted in the annular chamber b, mortised in the innerportion of the circular joint of the jaws A and B, and all three securedby the pivot 7.

The joint-chamber I) is left open in front at 1 to receive the neck 2 ofthe ring end 0 of the supplemental jaw, and this opening is of a lengthto limit the movement of the said jaw and prevent it separating itselffrom the plunger D when the jaws are opened.

The spiral spring E, inserted between the jaw A and the supplemental jawG, is to hold the same apart, and thereby lift the plunger in its seatin the case 0, when the jaws are opened to admit the insertion of astaple in the guiding-grooves d d of the said case.

The operation of the device thus constructed is as follows: The jawsbeing opened and a staple inserted in the guiding-grooves d (1 of thecase 0, with its shanks pointing outward, the goods to be stapled areplaced between the jaws, and the jaws closed by squeezing their handlestogether. Thismovement causes the front end of the upper jaw to pressdown on the shoulders 3 3 of the plunger, and the plunger toconsequently descend in its seat in the case C, and by means of itsfeathers d (I force the staple out of the guiding-grooves d (1', drivingthe staple-shanks through the articles between its jaws and into thetransverse groove 0 in the anvil-front F of the jaw B, where they arebent together and clinched up against the under side of the articlesbeing stapled by the form of the clinching-blade c inserted in saidgroove, as shown in Fig. 3 of the drawings.

The face of the plunger I) is provided with a cross-groove, 4, to causethe bottom of its feathers d d to rest upon the shoulders of the stapleinserted in the device, to prevent the downward bowing of thestaple-head while the same is being inserted as a binder, ashereinbefore described.

The oflice of the channel or depression fin the anvil F is to adapt theanvil to receive below its top surface the foot of the plunger D and theportion of the articles being stapled, to assist in clinching thestaple-legs up snug against the under side of such articles, as is fullydescribed in my beforementioned patent of February 18, 1879.

The inner surface of case C is constructed similarly to the innersurface of the case I) of my said patent, and for similar purposcs-towit, to admit of the device inserting staples having heads wider thantheir shanks, as represented in Figs. 10 and 11 ot' the drawings, and.patented to me by United States Letters Patent No. 214,166, dated April8, 1879.

Fig. 9 represents several sheets of leather bound by a staple as hereindescribed, and Fig. 12 represents a wire staple adapted to be insertedby this device.

I do not claim herein the staple-inserting mechanism adapted to receiveand insert a staple having its head or body portion wider than itsshanks; nor do I claim the herein-deseribed staple-clinchin g mechanism,consisting of the anvil F, provided with the channel f, transversegroove 0, and clinching-blade e, the same havingbeen patented to me byUnited States Letters Patent No. 212,316, dated February 18, 1879,hereinbcfore referred to; but

What I do claim as new in this application, and desire to secure byLetters Patent, is-

1. In combination with a pair of hinged arms provided with inserting andclinching jaws A and B, a feathered plunger to drive the staple, ananvil to clinch the same, a supplemental jaw attached to the upper ordrivin g jaw bya spring, and provided with grooves to receive, hold, andguide a staple, in which grooves the feathers of the plunger fit andmove, all constructed and combined to operate substantially asdescribed.

2. The jawA A, with slota, plunger D, with feathers d d, shoulders 3 3,and groove 4, supplemental jaw 0, having one of its ends provided withthe hinging-ring C and the neck 2, and its other end with the case 0,having staple-guiding grooves 11 d, in combination with the jaw B B,having its front end furnished with staple-clinching mechanismconsisting of the anvil F, with sunken channel f, transverse groove 0,and clinching-blade 0, all constructed and arranged to operateSllbStillb tially as described.

3. In a staple-inserting device constructed to operate substantially asdescribed, the annular chamber b, formed.in the joint of the vibratingjaws to receive the hinging-ring C of the supplemental jaw G, with anopening in front at 1 of a size to receive the neck 2 of said jaw andallow its case 0 to vibrate on the plunger 1) without clearing the same,substantiall y as and for the purposes described.

4. In a staple-inserting device constructed to operate substantially asdescribed, the jaw A, having its front end slotted at a to receive theneck (I of the plunger D, to admit of the plunger moving vertically inthe case 0 on the device beingoperated, substantially as and for thepurposes described.

5. The plunger I), having the shoulders 3 3, neck (1 and head d, toadmit of its being raised and lowered vertically in the case 0 by thejaw A, substantially as and for the purposes described.

6. In a staple-inserting device constructed to operate substantially asdescribed, the combination of the intermediate jaw O, plunger 1), andspring E, arranged in such manner that the plunger D is automaticallyraised in the case 0 on pressure being removed from the handles of thejaws, substantially as and for the purposes described.

In testimony that I claim the foregoing as my invention I herewith affixmy signature in the presence of two witnesses.

GEORGE W. MCGILL.

Witnesses HARRY McGiLL, M. H. McGILL.

